New chirping noise [videos]

[esevx5]

Can anyone please help with this?
This recently developed and I'm not sure what it is. N52

About 6000 miles ago, I've replaced the following parts in this picture:


#4 pulley
#6 pulley (bottom pulley of the tensioner)

Could it be the pulley above #6?

Here are some clips:
This one I took upon cold start. As the rpms settled down, the sound frequency decreased as well
https://streamable.com/lttyo
https://streamable.com/4ods2
https://streamable.com/fo2ai


Then after driving for 8 min
https://streamable.com/6p4dk


Then coming back home after a 20 min drive or so
https://streamable.com/wdlbp

Looks like the chirping noise slightly decreased but I can still hear some weird train like sound

Thanks everyone